Denver is about 5,200 feet above sea level. Which number line best represents this integer? A number line going from negative 7,000 to positive 7,000. A point is at 5,200. A number line going from negative 7,000 to positive 7,000. A point is at 4,800. A number line going from negative 7,000 to positive 7,000. A point is at negative 4,800. A number line going from negative 7,000 to positive 7,000. A point is at negative 5,200.'